Portable roadway hump



FIG. 1 is a top perspective view of a portable roadway hump showing my design,

FIG. 2 is a top plan view thereof,

FIG. 3 is a bottom plan view thereof,

FIG. 4 is a first side elevation thereof; and,

FIG. 5 is a second side elevation thereof. 

The ornamental design for a portable roadway hump, as shown and described. 